Spectacular increase of resistivity by thermal cycling under a magnetic field in Pr0.5Ca0.5Mn0.99Cr0.01O3

被引：10

作者：

Mahendiran, R ^{[1
]}

Maignan, A ^{[1
]}

Hervieu, M ^{[1
]}

Martin, C ^{[1
]}

Raveau, B ^{[1
]}

机构：

[1] Univ Caen, ISMRA, Lab CRISMAT, F-14050 Caen, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2001年 / 160卷 / 01期

关键词：

galvanomagnetic effects; electron-phonon interaction; magnetically ordered materials; surfaces and interfaces; phase transition;

D O I：

10.1006/jssc.2001.9203

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The resistivity of Pr0.5Ca0.5Mn0.9Cr0.01O3 under H = 4T shows unusual instability against thermal cycling between 250 and 5 K. The resistivity at 10 K change from 100 Omega cm in the first cycle to more than 10(6) Omega cm in the fifth cycle. However, magnetization decreases only by 1.2% between the first and the fifth cycles. The unusual enhancement of resistivity is suggested to be due to strain-induced localization of charge carriers. (C) 2001 Academic Press.

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页码：1 / 3

页数：3

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